You will get Backend API Development (Node.js, NestJS, FastAPI, PostgreSQL, AWS)
Rising Talent
Rising Talent
Project details
I will build a high-performance backend API using Node.js, NestJS, or Python FastAPI, fully optimized for speed, security, and scalability. Whether you need a new backend, want to refactor an existing one, or require integrations with third-party services, I will deliver clean architecture, efficient queries, and production-grade deployments.
What’s Included:
• REST or GraphQL API development
• Clean architecture using TypeScript
• Database design: PostgreSQL, MongoDB, MySQL
• ORM support (Prisma, TypeORM, Mongoose)
• API authentication (JWT, OAuth2, API Keys)
• Microservices and event-driven architecture
• AWS integration (EC2, Lambda, S3, SQS, SES)
• Payment integrations (Stripe, Plaid, PayPal)
• Logging, monitoring, error handling
• Docker containerization + CI/CD pipelines
****** Free Requirement Analysis and Consultation ******
Drop your inquiry and get an amazing Experience. Assuring you successful execution and long-term support.
What’s Included:
• REST or GraphQL API development
• Clean architecture using TypeScript
• Database design: PostgreSQL, MongoDB, MySQL
• ORM support (Prisma, TypeORM, Mongoose)
• API authentication (JWT, OAuth2, API Keys)
• Microservices and event-driven architecture
• AWS integration (EC2, Lambda, S3, SQS, SES)
• Payment integrations (Stripe, Plaid, PayPal)
• Logging, monitoring, error handling
• Docker containerization + CI/CD pipelines
****** Free Requirement Analysis and Consultation ******
Drop your inquiry and get an amazing Experience. Assuring you successful execution and long-term support.
Programming Languages
JavaScript, PythonCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$150
|
Standard
$350
|
Advanced
$600
|
|---|---|---|---|
| Delivery Time | 3 days | 6 days | 10 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Frequently asked questions
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AH
Ali H.
Jan 26, 2026
AI-Powered Customer Support Chatbot Developer (MERN Stack)
Zeeshan nailed our AI chatbot project with solid MERN and AI/LLM skills.
Backend, integrations, and contextual responses — all done smoothly.
Great communication, on-time delivery, zero headaches. Appreciate the efforts and highly recommended.
Backend, integrations, and contextual responses — all done smoothly.
Great communication, on-time delivery, zero headaches. Appreciate the efforts and highly recommended.
About Zeeshan
AI Engineer | AI Agents, Voice Bots, LLM Apps, RAG & Automation
Lahore, Pakistan - 4:23 am local time
I am an AI Engineer with 6+ years of experience building production-grade AI applications, AI agents, workflow automation systems, and scalable software platforms for startups, scale-ups, and enterprise companies.
My expertise lies in designing, architecting, and deploying AI-powered solutions that move beyond experimentation and deliver real business value.
I help companies build:
→ AI Agents that reason, act, and automate tasks
→ Multi-Agent Systems for complex business workflows
→ RAG (Retrieval-Augmented Generation) applications powered by proprietary business data
→ Voice AI Agents for customer support, sales, and operations
→ Workflow Automation Platforms that eliminate repetitive manual work
→ AI-Powered SaaS Products built for scale
→ Enterprise AI Systems integrated into existing business operations
Unlike many AI developers who focus solely on prototypes, I combine AI expertise with strong software engineering fundamentals to deliver secure, scalable, and production-ready systems.
AI & Automation Expertise
✅ AI Agents • Multi-Agent Systems • LangChain • LangGraph • CrewAI • MCP Servers • Tool Calling • Function Calling • Human-in-the-Loop Workflows
RAG & Knowledge Systems
✅ RAG • Knowledge Bases • Semantic Search • Document Intelligence • Enterprise Search • PDF Processing • Pinecone • Qdrant • ChromaDB • Vector Databases
Voice AI & Conversational Systems
✅ Voice AI Agents • ElevenLabs • Vapi • Deepgram • Whisper • AI Calling Systems • Conversational AI • Appointment Booking Automation
Workflow Automation
✅ n8n • Make • Workflow Automation • Business Process Automation • CRM Automation • ERP Automation • Slack Integrations • Lead Qualification Systems
LLM Engineering & AI Integrations
✅ OpenAI • Claude • Gemini • AWS Bedrock • Ollama • Hugging Face • Prompt Engineering • AI Evaluation • AI Integrations
Backend Engineering
Strong engineering is what makes AI systems reliable in production.
✅ Node.js • NestJS • Express.js • Python • FastAPI • TypeScript • REST APIs • GraphQL • Microservices • Event-Driven Architecture
Frontend Development
✅ React.js • Next.js • Angular • Vue.js • Redux • Responsive Web Applications • Dashboard Development • Modern UI Systems
Databases
✅ PostgreSQL • MongoDB • MySQL • Redis • Prisma • TypeORM • Mongoose • Query Optimization
Cloud & Infrastructure
✅ AWS (EC2, Lambda, S3, SQS, SES, Bedrock) • Docker • CI/CD • GitHub Actions • Jenkins • Nginx • Monitoring & Scaling
Third-Party Integrations
✅ Stripe • Plaid • PayPal • Twilio • Firebase • Onfido • Middesk • Custom API Integrations
Selected Project Experience
FoodSwitch (Global Health Platform)
Built scalable NestJS microservices and cloud infrastructure supporting millions of product comparisons globally. Integrated AWS Bedrock, S3, SQS, and SES while optimizing MongoDB performance for large-scale workloads.
RealWealthdy (US Real Estate Platform)
Led backend development and system architecture. Developed secure APIs using NestJS and Prisma, implemented payment integrations, identity verification workflows, and AWS infrastructure while collaborating on React frontend development.
Degree37 (CRM Platform)
Developed full-stack CRM solutions using NestJS, PostgreSQL, TypeORM, and React. Built operational dashboards, donor management systems, and business workflows used daily by internal teams.
Haul & Pull Up
Designed scalable backend systems and integrated financial and communication services using AWS, MongoDB, LoopBack, and Twilio.
TAAPI
Built high-performance APIs and analytics systems processing real-time financial and trading data across multiple exchanges.
Why Clients Work With Me
✔ 6+ Years of Professional Software Engineering Experience
✔ AI-First Development Approach
✔ Production-Ready AI Systems
✔ Strong Architecture & Technical Leadership
✔ Startup & Enterprise Experience
✔ Clean, Scalable & Maintainable Code
✔ Fast Communication & Ownership Mindset
✔ End-to-End Delivery from Architecture to Deployment
Let's Build Something Valuable
Whether you're building an AI Agent, RAG Platform, Voice AI Solution, Workflow Automation System, Internal Knowledge Assistant, AI SaaS Product, or Enterprise Application, I can help architect, develop, and scale it successfully.
Send me a message and let's discuss how AI can create measurable impact for your business.
#AIAgents #AgenticWorkflows #MultiAgentSystems #RAG #RetrievalAugmentedGeneration #LangChain #LangGraph #MCP #WorkflowAutomation #n8n #Make #VoiceAI #ConversationalAI #ElevenLabs #Vapi #Deepgram #OpenAI #Claude #Gemini #AWSBedrock #PromptEngineering #KnowledgeBases #SemanticSearch #VectorDatabases #Pinecone #Qdrant #ChromaDB #AIChatbots #AISaaS #BusinessAutomation #Python #FastAPI #NodeJS #NestJS #ReactJS #NextJS #Angular #VueJS #PostgreSQL #AWS
Steps for completing your project
After purchasing the project, send requirements so Zeeshan can start the project.
Delivery time starts when Zeeshan receives requirements from you.
Zeeshan works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Overview
Clarifying endpoints, workflows, integrations, and goals.
Database & Architecture Planning
Designing scalable schemas, relations, and system structure.